Commit bfd9a94d authored by Johan Hovold's avatar Johan Hovold Committed by Greg Kroah-Hartman
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greybus: es1: fix buffer-size limit 



The maximum buffer size does not include the headroom, so subtract the
headroom size from the actual buffer size.

Signed-off-by: default avatarJohan Hovold <johan@hovoldconsulting.com>
Reviewed-by: default avatarAlex Elder <elder@linaro.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@google.com>
parent 79940cf8

drivers/staging/greybus/es1.c

+1 −1
Original line number Diff line number Diff line
@@ -132,7 +132,7 @@ static void hd_buffer_constraints(struct greybus_host_device *hd) 
	 * that's better aligned for the user.

	 */

	hd->buffer_headroom = sizeof(u32);	/* For cport id */

	hd->buffer_size_max = ES1_GBUF_MSG_SIZE_MAX;

	hd->buffer_size_max = ES1_GBUF_MSG_SIZE_MAX - hd->buffer_headroom;

	BUILD_BUG_ON(hd->buffer_headroom > GB_BUFFER_HEADROOM_MAX);

}